I have the Holdfast Vacuum system and it has been giving me some problems. Below is a picture of a bowl and if you look in the center you can see where the edge of the vacuum chuck has left an indent in the bottom of the bowl. The system says there needs to be 12 on the gauge to safely hold a bowl. On this bowl I had about 13 or 14 on the gauge, not near as high as it can go. This is not the first time I have had this problem. I get it with both the 6" and the 3.5" chuck. It is near impossible to sand out the ring. My question is, has anyone else had this problem and if so what did you do to correct it. I'm the kind of person who would rather buy a tool than make one if possible. I much prefer making bowls to making tools.


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